Why is temperature essential to be maintained?

• A. The body's chemical reactions occur best at normal body temperature.
• B. Temperature has no effect on biochemical reactions.
• C. Blood pressure is regulated primarily by temperature.
• D. Temperature only affects enzyme activity in the liver.

Answer: (A)

Temperature governs how fast biochemical reactions occur because enzymes driving metabolism have an optimum range. At normal body temperature, these reactions proceed efficiently to keep tissues functioning. When temperature deviates, reaction rates slow down or enzymes can become damaged, membranes lose stability, and overall bodily processes falter. That’s why maintaining a stable, normal body temperature is essential. The best explanation is that chemical reactions occur best at normal body temperature. Saying temperature has no effect on biochemical reactions is incorrect. Blood pressure is regulated by heart output, vessel tone, and neural/hormonal controls, not primarily by temperature. And temperature affects many enzymes throughout the body, not just those in the liver.